Rotating Annular Cavitation Device for Variable Flow Control
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Solution Overview
Problem
Current flow-through hydrodynamic cavitation devices are inefficient in terms of energy consumption and processing time, lacking the capability to uniformly alter fluid properties and compositions in a compact and cost-effective manner, particularly in pharmaceutical and refinery applications where throughput is critical.
Innovation Solution
A compact, adjustable multi-stage flow-through cavitation device with variable multi-jet nozzles that control hydrodynamic cavitation intensity by adjusting the flow cross-section area through rotational alignment of inner and outer annular bodies, allowing for precise manipulation of fluid flow and cavitation conditions to enhance mass transfer and reaction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional flow-through hydrodynamic cavitation devices are used, then cavitation processing can be achieved, but energy consumption is high and processing time is long
Solution Approach 1:
The nozzle flow cross-section area is made variable through rotational adjustment of the inner annular body relative to the outer annular body. This dynamic adjustment allows optimization of cavitation intensity and fluid flow characteristics, enabling efficient processing with reduced energy consumption by matching the flow conditions to the specific processing requirements
Solution Approach 2:
The invention changes the flow cross-section area parameter of the nozzle by rotating the inner annular body to different angular positions. This parameter change directly controls the cavitation intensity and fluid velocity, allowing optimization of the balance between processing efficiency and energy consumption based on the specific application needs
2Productivity
If conventional flow-through hydrodynamic cavitation devices are used, then fluid processing can be performed, but processing time is excessive
Solution Approach 1:
The variable flow cross-section area achieved through rotational adjustment enables dynamic optimization of fluid velocity and cavitation intensity. This allows the system to operate at peak efficiency for different throughput requirements, significantly reducing processing time while maintaining high productivity
Solution Approach 2:
The rotational adjustment mechanism allows periodic optimization of flow conditions. By adjusting the inner annular body to different positions, the system can adapt to varying processing demands, maintaining optimal cavitation intensity throughout the processing cycle and reducing overall processing time
3Stability of the object's composition
If conventional flow-through hydrodynamic cavitation devices are used, then cavitation can be generated, but uniform alteration of fluid properties cannot be achieved
Solution Approach 1:
The variable flow cross-section area creates different flow conditions and cavitation intensities at different radial positions. By adjusting the angular position of the inner annular body, uniform cavitation distribution can be achieved across the fluid flow, ensuring uniform alteration of fluid properties while maintaining high treatment efficiency
Solution Approach 2:
The flow cross-section area parameter is adjusted to optimize cavitation uniformity. By changing the angular position of the inner annular body, the system achieves uniform distribution of cavitation events across the flow cross-section, ensuring consistent treatment of fluid properties throughout the entire volume
4Ease of manufacture
If conventional flow-through hydrodynamic cavitation devices are used, then processing can be performed, but equipment and handling costs are high
Solution Approach 1:
The rotational adjustment mechanism provides a simple yet effective means of controlling flow conditions without requiring complex valve systems or multiple nozzles. This dynamic adjustment capability is achieved through a straightforward mechanical arrangement, reducing equipment complexity and manufacturing costs while maintaining high treatment efficiency
Solution Approach 2:
The variable flow cross-section area nozzle serves multiple functions: it controls flow rate, optimizes cavitation intensity, and ensures uniform fluid property alteration. This multi-functionality is achieved within a single compact device structure, reducing the need for additional equipment and lowering overall system cost while maintaining high productivity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device achieves efficient and uniform alteration of fluid properties, reducing energy consumption and processing time while maintaining high treatment efficiency, enabling the production of stable emulsions and dispersions with reduced equipment and handling costs.
Implementation Method 1
Hydrodynamic cavitation comprises the vaporization, generation, growth, pulsation and collapse of bubbles which occur in a flowing liquid as a result of a decrease and subsequent increase in the hydrostatic pressure
Implementation Method 2
When the cavitation bubbles relocate to a high-pressure zone they will implode within a short time. The collapse of bubbles is asymmetrical because the surrounding liquid rushes in to fill the void forming a micro jet that subsequently ruptures the bubble with tremendous force
Implementation Method 3
The implosion is accompanied by a significant jump in both the local pressure and temperature up to 1,000 atm and 5,000° C., respectively, and the formation of shock waves
Implementation Method 4
The implosion may be accompanied by the emission of UV radiation and/or visible light, which promotes photochemical reactions and generates radicals
Data Source
AI summary
A flow-through cavitation device having an elongated housing with an inlet and an outlet. An inner annular body and an outer annular body are concentrically and nestingly disposed in the elongated housing. The outer annular body is fixed relative to the housing and the inner annular body is rotatable about a longitudinal axis of the housing. Each annular body has a plurality of channels that pass therethrough. Rotation of the inner body relative to the outer body provides for selective alignment or misalignment of the plurality of channels to control fluid flow from the inlet to the outlet. The device may have a plurality of pairs of inner and outer annular bodies as described.